The Indian Navy is a modern, multi-dimensional maritime force responsible for safeguarding India’s strategic interests across the Indian Ocean Region. Equipped with aircraft carriers, nuclear submarines, destroyers, frigates, advanced maritime aircraft and indigenous warships, it stands among the world’s leading blue-water navies. This comprehensive guide explains the Navy’s history, organisational structure, commands, ranks, training, ship types, aircraft carriers, submarines, aviation assets and future modernisation plans. Designed specifically for Naval Services Selection Board aspirants, it provides in-depth knowledge essential for interviews, lecturette, and group discussions.